According to this law, if a process in equilibrium is subjected to change in the factors that affect equilibrium, then the equilibrium shifts in a specific direction which tends to counteract the effect of change imposed.
The common ion effect is a result of this law
Factors affecting equilibrium are
Change in concentration of reactants or product
Change in temperature
Change in pressure
Adding an inert gas
According to this law,
The concentration of the product is decreased and hence, the equilibrium shifts to the right.
